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20310201322 = 210155100661
BaseRepresentation
bin10010111010100101…
…010001001111101010
31221102110020010110121
4102322211101033222
5313043402420242
613155210033454
71316206601635
oct227245211752
957373203417
1020310201322
118682640954
123b29a1888a
131bb8a37b08
14da9592c1c
157dd0e2667
hex4ba9513ea

20310201322 has 4 divisors (see below), whose sum is σ = 30465301986. Its totient is φ = 10155100660.

The previous prime is 20310201271. The next prime is 20310201323. The reversal of 20310201322 is 22310201302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19793957481 + 516243841 = 140691^2 + 22721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20310201296 and 20310201305.

It is not an unprimeable number, because it can be changed into a prime (20310201323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5077550329 + ... + 5077550332.

Almost surely, 220310201322 is an apocalyptic number.

20310201322 is a deficient number, since it is larger than the sum of its proper divisors (10155100664).

20310201322 is a wasteful number, since it uses less digits than its factorization.

20310201322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155100663.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20310201322 its reverse (22310201302), we get a palindrome (42620402624).

The spelling of 20310201322 in words is "twenty billion, three hundred ten million, two hundred one thousand, three hundred twenty-two".

Divisors: 1 2 10155100661 20310201322